$arr = array(     '0'=>array(          'name'=>'james',          'age'=>30,          ),     '1'=>array(          'name'=>'susu',          'age'=>26,          ),     '2'=>array(          'name'=>'james',          'age'=>30,          ),     'new'=>array(          'name'=>'kube',          'age'=>37,          ),     'list'=>array(          'name'=>'kube',          'age'=>27,          ),     );

<?php$arr = array(     '0'=>array(          'name'=>'james',          'age'=>30,          ),     '1'=>array(          'name'=>'susu',          'age'=>26,          ),      '2'=>array(          'name'=>'james',          'age'=>30,          ),      'new'=>array(          'name'=>'kube',          'age'=>37,          ),      'list'=>array(          'name'=>'kube',          'age'=>27,          ),      );printf("Before tranform the array:<br>");  //輸出原來的數組print_r($arr);echo "<br/>";function more_array_unique($arr=array()){  foreach($arr[0] as $k => $v){    $arr_inner_key[]= $k;  //先把二維數組中的內層數組的鍵值記錄在在一維數組中  }  foreach ($arras $k => $v){    $v =join(",",$v);  //降維 用implode()也行    $temp[$k] =$v;   //保留原來的鍵值 $temp[]即為不保留原來鍵值  }  printf("After split the array:<br>");  print_r($temp);  //輸出拆分后的數組  echo"<br/>";  $temp =array_unique($temp);  //去重：去掉重復的字符串  foreach ($tempas $k => $v){    $a = explode(",",$v);  //拆分后的重組 如：Array( [0] => james [1] => 30 )    $arr_after[$k]= array_combine($arr_inner_key,$a); //將原來的鍵與值重新合并  }  //ksort($arr_after);//排序如需要：ksort對數組進行排序(保留原鍵值key) ,sort為不保留key值  return$arr_after;}$arr_new = more_array_unique($arr); //調用去重函數printf("Duplicate removal of the array:<br>");print_r($arr_new);echo "<br/>";?>

Before tranform the array:  //原來數組Array ( [0] => Array ( [name] => james [age] => 30 ) [1] => Array ([name] => susu [age] => 26 ) [2] => Array ( [name] => james [age]=> 30 ) [new] => Array ( [name] => kube [age] => 37 ) [list] =>Array ( [name] => kube [age] => 27 ) )After split the array: //拆分后數組Array ( [0] => james,30 [1] => susu,26 [2] => james,30 [new] =>kube,37 [list] => kube,27 )Duplicate removal of thearray: //去重后數組Array ( [0] => Array ( [name] => james [age] => 30 ) [1] => Array ([name] => susu [age] => 26 ) [new] => Array ( [name] => kube [age]=> 37 ) [list] => Array ( [name] => kube [age] => 27 ) )

<?php$arr= array(……); //同上的二維數組functionsecond_array_unique_bykey($arr, $key){  $tmp_arr = array();  foreach($arr as $k => $v)  {    if(in_array($v[$key], $tmp_arr))  //搜索$v[$key]是否在$tmp_arr數組中存在，若存在返回true    {      unset($arr[$k]); //銷毀一個變量 如果$tmp_arr中已存在相同的值就刪除該值    }    else {      $tmp_arr[$k] = $v[$key]; //將不同的值放在該數組中保存    }  }  //ksort($arr); //ksort函數對數組進行排序(保留原鍵值key) sort為不保留key值  return $arr;  }  $key ='name';  $arr_key = second_array_unique_bykey($arr,$key);  printf("As for the givenkey->%s:<br>",$key);  print_r($arr_key);  echo "<br/>";?>

As for the given key->name:Array ( [0] => Array ( [name] => james [age] => 30 ) [1] => Array ([name] => susu [age] => 26 ) [new] => Array ( [name] => kube [age]=> 37 ) )